Optimization of retargeting for IEEE 1149.1 TAP controllers with embedded compression

2017 ◽  
Author(s):  
Sebastian Huhn ◽  
Stephan Eggersgluss ◽  
Krishnendu Chakrabarty ◽  
Rolf Drechsler
Keyword(s):  
Embedded Compression ◽  
Ieee 1149.1

scholarly journals Optimized Lossless Embedded Compression for Mobile Multimedia Applications

Electronics ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 868
Author(s):  
Sungchul Yoon ◽  
Sungho Jun ◽  
Yongkwon Cho ◽  
Kilwhan Lee ◽  
Hyukjae Jang ◽  
...  
Keyword(s):  
Dynamic Range ◽  
Random Access ◽  
High Dynamic Range ◽  
Multimedia Applications ◽  
Commercial Application ◽  
Mobile Multimedia ◽  
Design Factor ◽  
Closure Condition ◽  
Timing Closure ◽  
Embedded Compression

Power consumption is a critical design factor in modern mobile chip design, in which the memory system with dynamic random-access memory (DRAM) consumes more than half of the entire system’s power. Without DRAM bandwidth compression, extreme multimedia operations such as 8K high dynamic range (HDR) recording and 8K video conference calling are not possible without sacrificing image quality or trimming because of thermal limitations or battery time sustainability constraints. Since heterogeneous processors are substantially involved in managing various types of fallbacks or software solutions, complicated compression algorithms for high-compression ratios are not actually adaptable owing to timing closure problems or high throughput requirements. In this paper, we propose evaluation metrics to assess lossless embedded compression (LEC) algorithms to reflect realistic design considerations for mobile multimedia scenarios. Furthermore, we introduce an optimized LEC implementation for contemporary multimedia applications in mobile devices based on the proposed metrics. The proposed LEC implementation enhances the compression ratio of LEC algorithms in other commercial application processors for contemporary premium smartphones by up to 9.2% on average, while maintaining the same timing closure condition.

scholarly journals An MPEG decoder with embedded compression for memory reduction

1998 ◽  
Vol 44 (3) ◽  
pp. 545-555 ◽  
Author(s):  
P.H.N. De With ◽  
P.H. Frencken ◽  
M. Schaar-Mitrea
Keyword(s):  
Embedded Compression ◽  
Memory Reduction
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